Can I build a deck together with friends on TCGSwap?

Yes. Every deck on TCGSwap has a Collaboration Space. You can invite up to 5 friends; they can suggest card changes, discuss ideas, and playtest proposals. You review and apply suggestions before anything changes in your deck.

How does deck collaboration work?

It works like a pull request for your deck. Collaborators open the deck editor, make their proposed changes, and submit a suggestion with a note. You get notified, open the comparison view to see exactly what they changed, and choose to apply all, cherry-pick individual cards, or decline. Nothing changes in your deck until you approve it.

Can collaborators chat and discuss the deck?

Yes. The Collaboration Space has a shared group discussion thread for the whole deck, plus a per-suggestion Q&A thread for each proposal. You can @mention teammates and link specific cards inline.

Is collaborative deck building free?

Yes, collaboration is free for all TCGSwap users during beta. You can invite up to 5 collaborators per deck.

Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

Yes. The Collaboration Space supports all four games — Magic: The Gathering, Pokémon TCG, Yu-Gi-Oh and One Piece. Format validation and card prices are included for each game.

Houndoom · Neo Discovery 4/75

Houndoom (Neo Discovery 4/75), Rare, Stage1, 70 HP. Market price €51.52, up 39.0% this week. Illustrated by Shin-ichi Yoshida. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Upon hearing its eerie howls, other Pokémon get the shivers and head straight back to their nests.

Card text

Crunch 30 — Until the end of your next turn, if an attack damages the Defending Pokémon (after applying Weakness and Resistance), that attack does 20 more damage to the Defending Pokémon.
Flamethrower 50 — Discard 1 Energy card attached to Houndoom or this attack does nothing.

Weekly price history

Week	Market price
2026-W31	€40.51
2026-W32	€38.79
2026-W33	€38.79
2026-W34	€38.87
2026-W35	€38.87
2026-W36	€34.85
2026-W37	€34.22
2026-W38	€37.07
2026-W39	€51.52

Questions

How much is Houndoom 4/75 worth?

Houndoom from Neo Discovery (4/75) has a market estimate of €51.52, up 39.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Houndoom 4/75 rare?

It is a Rare from Neo Discovery, a 75-card set.

Is Houndoom 4/75 tournament legal?

Houndoom 4/75 has rotated out of the current formats.

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